I can't find a decent shot of the bar at the Holler House in Milwaukee. Lots of photos of the downstairs bowling lanes.
I like Nye's here in Minneapolis.
It's actually two bars. The photo on the upper right is the bar in the dining room near the piano bar. The lower left is the polka bar in an adjacent room. It can be irritating at times when young drunks clog the place but there are lots of non-ironic families who eat, drink, and dance together.